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Finding the Fourth Proportional to 486,412.80, 730,202.40 and 273,350.40

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Solution

The fourth proportional to 486,412.80, 730,202.40 and 273,350.40 is: 410,353.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,412.80 : 730,202.40 = 273,350.40 : x
  2. Step 2: Convert to fraction form
    486,412.80/730,202.40 = 273,350.40/x
  3. Step 3: Cross multiply
    486,412.80x = 730,202.40 × 273,350.40
  4. Step 4: Simplify right side
    486,412.80x = 199,601,118,120.96
  5. Step 5: Solve for x
    x = 199,601,118,120.96/486,412.80
  6. Step 6: Final answer
    x = 410,353.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.